Okay, since there's a stupidly huge amount of RPGs coming out for the DS (and Wii) in the next two months, thought I'd sum them up here. Info comes from Nintendo Power, which put out a nice RPG issue that's almost worth the exorbitant cover price.
Suikoden: Tierkreis (DS)
Standard Suiko-stuff, but there is an alternate realities/parallel worlds motif. You can send your characters into another player's game via wi-fi or local wireless, where they will do missions (think FFT jobs) and get items and experience. There is also a side-story and special boss that can only be encountered via wi-fi play.
Mario & Luigi RPG 3 (DS)
Mario & Luigi get shrunk and stuck inside Bowser's body. You control tiny M&L on the bottom screen with two buttons, and life-size Bowser on the top screen with the other two. Simultaneously. Someone's been playing TWEWY too much.
Beat Fighter (DS)
Uh, these funny-looking things called Zubos fight these other things called Zombos... uh, there's probably some more plot but I don't know it. Combat is turn-based, but with a rhythm element - kind of Elite Beat Agents. Actually it looks similar to VP's combat system with counterattacks and such.
Avalon Code (DS)
You have to "record" everything in the world in your magic book. Everything is made up of different amounts of elements. Like a timid writer in town is made of four parts illness, four parts cat. And then you can change those elements around. Like Goblins are tough because they are 3 parts stone, but you can remove that stone to lower their HP, then replace it with the illness from the writer to lower it some more (this affects ALL goblins in the world). Action combat system, with juggling and such. Graphics are nice too.
Phantasy Star 0 (DS)
Basically PS Universe, except with some improvements. Can play over wi-fi with other people. There's also an extensive offline mode, unlike previous games. The single player has an actual plot and such, and you can recruit AI party members to help you. Graphics are incredible (for the DS). Actually I have concerns about the hardware, because I don't think they can actually pull off everything they describe here on the DS. If they can, it's going to be amazing.
Valkyrie Profile: Covenant of the Plume (DS)
SRPG instead of the usual maneuvering, although it still defaults to VP1's combat system after you move. Great, awesome, makes up for VP2, etc. etc. Also of note is the extensive translation job they did. They actually took the effort to make each character's dialogue match the medieval period appropriate to them. Supposedly it's a really immersive experience.
Sands of Destruction (DS)
Basically if you were waiting for a new Chrono Trigger, this is it. Returns several key developers/artists/musicians from Chrono Trigger/Xenogears/Chrono Cross/Xenosaga. Combat appears to be like Xenogears. Oh, and your goal is to destroy the world rather than save it. Supposedly the random encounter rate is being toned down from the Japanese version.
Dragon Quest V: Hand of the Heavenly Bride (DS)
One of two Dragon Quests never to make it to America, this also happens to be series creator Yuji Horii's favorite. Copying the formula from the most successful RPG ever, Phantasy Star 3, you get to choose your bride and have three generations of familyness to fight the bad guy with. New to the DS version is a third choice of bride. Nera's sister Debora is a self-absorbed, controlling woman who is terrible marriage material. But hey, she doubleacts!
Fire Emblem: Shadow Dragon (DS)
Remake of FE1. Nothing you haven't seen in other FEs, other than the ability to fight other players over wi-fi.
Arc Rise Fantasia (Wii)
Same people who did the Luminous Arc games, although they are not connected (despite the name). This is very much like a Tales game, although combat is turn-based. Pretty, but seems kind of generic.
Final Fantasy Crystal Chronicles: Echoes of Time (DS and Wii)
Same as Phantasy Star 0, except crappier. The DS and Wii versions are the exact same game, other than the Wii having (slightly) better graphics. You can play over wi-fi with anyone with either version of the game. Offline mode sucks due to crappy computer AI.
Did I mention all of these come out in either February or March? DS just became the next-gen console of choice for RPGs.
EDIT: Also forgot My World My Way and Pokemon Platinum. So yeah, that's TWELVE RPGs in two months for the DS.
